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Finding the Fourth Proportional to 220,786.70, 331,229.25 and 80,545.32

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Solution

The fourth proportional to 220,786.70, 331,229.25 and 80,545.32 is: 120,835.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,786.70 : 331,229.25 = 80,545.32 : x
  2. Step 2: Convert to fraction form
    220,786.70/331,229.25 = 80,545.32/x
  3. Step 3: Cross multiply
    220,786.70x = 331,229.25 × 80,545.32
  4. Step 4: Simplify right side
    220,786.70x = 26,678,965,934.61
  5. Step 5: Solve for x
    x = 26,678,965,934.61/220,786.70
  6. Step 6: Final answer
    x = 120,835.93

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